Nozzle Lances andSystems for Gas Coolingand ConditioningEFFICIENT COOLING AND CONDITIONINGWITH LECHLER NOZZLE LANCES AND SYSTEMS

Lechler is Europe’s No. 1 and is also one of the leading suppliers of nozzles and systems worldwide. For over 135 years, we have pioneered numerous groundbreaking developments in thefield of nozzle technology. We combine comprehensive nozzle engineering expertise with a deep
understanding of application-specific requirements to create products that oﬀer outstanding
performance and reliability.

Innovative solutions
for a trending market

The right solution
for every requirement

Lechler is your innovative andreliable partner in all mattersrelating to gas cooling andconditioning. Always with theaim of employing our expert
knowledge to optimize yourprocess.

With our wide range of
nozzles and gas conditioning
systems, we offer the perfectsolution for every application.
Every plant naturally comeswith its own set of challenges.

Our nozzle lances and systems
have proved in different
applications and plants allover the world:
Cement and lime industry

Waste incineration plantsPower plants
Steel industryGlass industryChemical industry

Efficient gas conditioning
offers a wide range of approaches to reduce costs
and increase efficiency.
A prerequisite is that therespective processes arethoroughly understood andthat the gas conditioning is
adapted accordingly.

We rise to these challenges
and work with you to develop the best solutions foryour business. We support
you with comprehensive
consulting services ranging
from process analysis toturnkey solutions.

1879

1893

1962

1978

Company founded by Paul Lechler

Patent for liquid atomization

Sales offices set up in Germany

Expansion to the USA andthen to other countries

2

COMPETENCE –THE ADVANTAGE OF MULTIPLE PERSPECTIVES

For many years now, nozzles
and spray systems for industrial gas conditioning havebeen an integral part of ourEnvironmental Technologies
portfolio. An internationalteam of outstanding engineers and process engineers
continuously develop new
solutions and adapt them to
new challenges.

CUSTOMERADVANTAGES
Wide productrange

Through the use of global
databases and close
cooperation with external
specialized institutes and renowned plant manufacturers,
we have built up an interdisciplinary knowledge base –and with it optimal processintegration.
Our constant exchange ofexperiences with plant
operators means we arealways in tune with the latest
developments and can react
proactively to them.

Process
optimization

Service
Process
reliability
ExperienceCostsavings
Custom madesolutions

Costs under control

costs of spare parts, butalso decreases downtimes
and maintenance costs. In
addition, customer-specificsystems lower the operating
costs to a minimum.

Our job is to identify theappropriate solution ineach case and then adapt
it perfectly to the on-site
conditions.

To provide you with local
support, we are represented
all around the globe – withlocations in the USA, GreatBritain, India, China, ASEAN,
France, Belgium, Italy, Finland,
Hungary, Spain and Sweden,
as well as sales partners inalmost every country.

In most processes with hot
offgases generally extreme
environmental conditions
prevail. We manufacture ournozzles from highly resistantmaterials with minimal wear.

1988

1995

2010

2016

Environmental Technologies
division founded

Production, sales and administration
are concentrated in Metzingen

Expansion of production with new
13,000 m² production hallOpening of the ultra-modern
Development and Technology
Center in Metzingen

The long service life of ourhigh-quality components forvalve skid units and systems
does not just reduce the pureTwin-fluid nozzles allow for
an application-optimized fine
droplet spectrum, whereas
spillback systems do awaywith compressed air altogether to reduce the energy
consumption.

3

LET’S OPTIMIZE YOUR GAS COOLING PROCESS

Our work begins with adetailed joint analysis of theprocess-related data, thevarious operating states andframework conditions. This
also includes energy consumption considerations.
For this we are backed by aglobal network of specialists
and our own expert advisors.
In order to obtain an optimaland comprehensive designof the cooler and of theassociated injection system,a large number of interacting
variables and different operating conditions need to betaken into account. Thanks
to our many years of experience, we are able to assist
you in calculating the amountof water and dimensioning
the evaporation distance.
For implementation, we offer
both twin-fluid or spillback
systems. We configure yoursystem in line with the process data and the cooler size,
thus giving you an optimum
solution.
As Europe’s No. 1 nozzle
designer and manufacturer,
Lechler attaches particularimportance to the carefulselection of the nozzle design
and is able to fall back ona uniquely wide range ofdifferent functional principles.

4

Temperature inlet
Gas flow rate inlet

Gas inlet
NozzlelancesValve skid unit

Controller

Water flow rate

Gas outlet

Gas coolingtower

We supply you with completely preassembled andtested valve skid units withdefined interfaces. Each of
the components is perfectly
tailored to the function of
the nozzle lances and their
on-site connections.

Temperature outlet
Gas flow rate outlet

Beyond gas cooling
Our nozzle lances aren’t limited to gas cooling.
They have proven their performance and efficiency
in a wide range of applications such as Nitrogen removal (DeNOx SCR and SNCR)
 Spray drying
 Spray absorption
 Fluid injection in circulated fluidized bed coolers, mills etc.

Cement andlime industry

Waste incineration
plantsPower plants

Steel industry

Glass industry

Chemicalindustry

CHOOSING THE RIGHT NOZZLEBest results are achieved in gas cooling and conditioning processes only
when detailed knowledge of process-specific requirements is available
to assist in the choice of nozzles.
We will provide you with comprehensive advice taking yoursystem and the applications you require into account. Our portfolio
includes nozzles made of diﬀerent materials for a wide range ofdroplet sizes and spray angles. The combination of your specificprocess requirements and our decades of experience results in a
tailor-made solution for your needs.

Spillback nozzles
Atomization without compressed air

Lechler spillback nozzles
atomize liquids as a finehollow cone.
This special single-fluid nozzle
works according to the pressure atomization principle.
The water is sent to the nozzle with a relatively constantfeed pressure, independent of
the atomized flow rate.

Spillback line
Supplywith constantfeed pressure
Spray pattern of asingle spillback nozzle

The amount of liquid injectedis adjusted via a control valve
in the spillback line, whereby part of the flow is takenfrom the inlet flow rate andreturned to the tank. The
maximum atomized flow rateis achieved with the control
valve closed.

Hollow cone

Uniform and fine liquid atomization is achieved across theentire control range.

.
Vpump

Constant feed pressure
p1 = 35 bar, gFlow rate.
Flow rate V [l/min]

The atomized flow rate can be
distributed over cluster heads
with up to six small nozzles.
This results in a total spray
angle of approximately 120°.
This wide distribution of liquid
over the entire duct is advantageous for reducing thenumber of lances.

Spray pattern of acluster spillback nozzle lance

Scheme of the spillback nozzle

.
V2
.
V1

.
V3 max.
V3.
V3 min.
V1: flow rate.
Vpump: max. flow rate.
V2: return flow.
V3: atomized liquid. .
.
V3= V1 – V2.
V3 min: min. atomized liquid(return line open).
V3 max: max. atomized liquid(return line closed)
p1: constant feed pressure
p2: return pressure.
.
Turn down ratio: V3 max/V3 min

Atomized liquid
Return pressure p2 [bar, g]Use: Gas cooling in mediumsized and large gas
cooling towers

Properties

V1
V2

Spray angle of theindividual nozzles
90° or 60°
as hollow cone

Low operating
costs as no
atomizing air
requiredHigh turn-down
ratio
of up to 12:1

Even and fineliquid atomization
over the entire
control range

Execution
as single or cluster
nozzle lances possiblebar

Typicalpressure rangeof 35 bar, g in the
supply line at thenozzle7

VarioJet® nozzles
Twin-fluid nozzles with low air consumption
despite large outlet angle

Lechler VarioJet® nozzles
atomize according to theprinciple of internal mixing.
With this twin-fluid nozzle,
the water is fed in axially via
a bore hole.

LiquidAtomizing air

Two-phasemixtureAfter arriving at the cone tip,
the liquid is split up into athin liquid film. This thin liquidfilm is split into finest dropletsby the atomizing air in the
mixing chamber. The resulting
two-phase mixture is thenatomized a second time when
exiting via several bore holesarranged in a circular fashion.

Secondaryatomization

Thanks to the innovative
design of the nozzle, a spraywith a large outlet angle isachieved. This is characterized by an even liquid
distribution as well as a fine
droplet spectrum with a low
specific air consumption.

The large free cross-sectionsin the nozzle keep the riskof clogging and the maintenance effort to a minimum.

Scheme of the VarioJet® nozzle

Variable control concepts of twin-fluid nozzles
1  2A
Constant
atomizer airpressure1  2B
Constant
60μm
d32=
atomizer air
70μm
=
2
3
d
volume flow
0μm
8
=
2
d3
90μm
=
2
1  2C
3
d
m
2A
100μ
Constant
m
d32=
μ
0
11
droplet diameter
d32=
0μm
2
1
m
=
30μ
d32
32=1 2=140μm 0μm
d
2B
1
15
m
d3
d32=
160μ
d32=
2C
p(air)= 6 barp(air)= 5 barp(air)=
4barp(air)= 1 barp(air)= 2 bar p(air)= 3 bar

Air flow rate [m³/h STD]

The fineness of the droplet
spectrum is decisively influenced by the air/liquid ratio
and by the pressure level ofthe two flow rates. As a general rule: the higher the air/liquid ratio and the higher thepressure level of atomizing
air and liquid is, the finer the
droplet spectrum.

Spray pattern of the VarioJet®
nozzleWater flow rate [l/min]Use: Gas cooling in gas
cooling towers as well
as gas-bearing pipes(ducts)Properties

V1
V2

8

Large spray angle(60°, 90°) forgood coverage of thecross-section of theductAdjustment of
the droplet
spectrum bychanging the air/fluid ratio

High turn-down
ratio
up to 20:1

Low air
consumption

Clog-resistant
thanks to large
free cross-sections
without internal
fittingsbar

Typicalpressure range
Liquid 1–9 bar, gAtomizing air 1–6 bar, gLaval nozzles
Twin-fluid nozzles for a wide droplet
spectrum in special applications

Lechler Laval nozzles
atomize liquids as a fine fullcone. These twin-fluid nozzles
work according to the supersonic principle.

Atomizing air

LiquidA dual-phase mixture is created from atomizing air andliquid in the mixing chamber
inside the nozzle. The shapeof the nozzle causes thismixture to be accelerated tosupersonic speed, resulting inan extremely fine atomizationof the droplets.

Constriction accelerates mixture to supersonic speed
Two-phasemixtureBy changing the air/liquidratio, the droplet size andthe droplet spectrum canbe adapted within a wide
range. The large free crosssections of the nozzle also
allow atomization of viscousor solids-laden liquids.

Scheme of the Laval nozzle

Operating point of a twin-fluid nozzle

Air flow rate [m³/h STD]

d3

Use:
 Gas cooling in gasbearing pipes (ducts)
and medium-sized andsmall gas cooling towers
 Injection of solids-ladenwater Introduction of lime
water in the desulfurisation process Injection of aqueous
ammonia or urea
solution for the DeNOx
process (SNCR/SCR) Chemical processengineering (spraydryers etc.)

Water pressure [bar, g]

Choosing the right material
prevents wear even whereabrasive media are present,
and enables use at hightemperatures.

Spray pattern of the Laval
nozzle

μm
2=50
d32

m
=60μ

p(air)= 6 barp(air)= 5 barp(air)= 4 bar

pWaterp(air)= 3 barp(air)= 2 barp(air)= 1 bar

7
d32=

0μm
d32=

.
VWater

Water flow rate [l/min]

80μm
90μm
m
d32=
100μ
m
d32=
110μ
d32=

.
VAir

d32=

120μ

m

p(air)= 6 barp(air)= 5 barp(air)= 1 barp(air)= 2 bar.
VWaterp(air)= 4 barp(air)= 3 bar

d32=
150µm
d32= 150µm

d32=
130µm
d32= 130µm

Water flow rate [l/min]

Properties

V1
V2

Small spray angle(15°), suitable forsmall cross-sections
and horizontal
ducts

Adjustment of
the droplet
spectrum bychanging the air/fluid ratio

Very large
turn down ratioof 20:1 (in somecases up to 40:1)

Very fine
droplet spectrum

Clog-resistant
thanks to large
free cross-sections
without internal
fittingsbar

Typicalpressure range
Liquid 1–6 bar, gAtomizing air 1–6 bar, g

9Nozzle lances
Highest spraying accuracy in the flue gas duct

Connection options
Accessories
Option 1: Quick release
couplings
Option 2: Flange connector
Option 3: Conicalscrew connection

Spillback nozzles
Option 1: Single nozzle
Option 2: Cluster head with 3
to 6 single nozzles

Lechler nozzle lances
ensure optimal spray placement and alignment in fluegas ducts. The choice of
nozzles and the conside­
ration of local conditions
and process-related mattersmeans they can be individually adapted to the respective
requirements.
The nozzles themselves havea low-maintenance designand can be quickly cleaned
or exchanged with minimal
effort.

10

The robust, high-quality
stainless steel construction
ensures a high degree offunctional reliability. Lances
are available in a variety ofmaterial to suit specific process requirements.
Lechler nozzle lances areavailable with many options,
including but not limited to:Protection tube to increase
the service life in case ofhigher temperatures, highdust loads and aggressive
gases, with barrier air as
an option

Wedge flange, standard
flange and special flange inaccordance with customer
requirementsGuide rail to facilitate lance
installation
Shifting device to change
the insertion lenght – withor without gastight sealing
Expansion joint or stuffing
box for expansion compensation at high temperatures

Assembly connecting
piece with flange connector
for welding onto flue gas
duct
Further special customizations including wear protection, insulation, watercooling or coatingPre-assembled accessory
kits for process media
connections (e.g. quick
release couplings, shut-offball valves, strainers)
Lechler nozzle lances are
manufactured in line withultramodern production
processes and according
to the state of the art.

Flange connections
Option 1: Wedge
Option 2: Standard flange e.g. DIN, ANSI etc.
Option 3: Special flange according to customer
specification

VarioJet® nozzle
Option 1: Without protection tube
and without protection cap
Option 2: With protection tube
and with protection cap

Material
Lances are manufactured
from stainless steel(316/316L) as standard, but
depending on requirements
can also be made of chemicaland high-temperature resistant materials.

Accessories are available ingalvanized steel or stainlesssteel and the hoses areavailable in rubber or stainlesssteel.

1

2

3

... !
Talk to us
Each gas cooling tower and flue gas duct is different.
Which is why standard solutions do not always makesense. Speak with us and let us work together to findthe best solution for your purposes.

11VarioCool ® gas cooling system
For a perfectly tailored solution

Our valve skid units for regulating the flow rates of water and atomizing air are individual customer-specificsolutions. Based on the requirements in each case, our first step is to design an overall concept and select thebest components in order to create a perfectly tailored solution.

First-class engineering
To perform our engineering, we determine all relevant parameters and define the plant’s design. This includes determining
the nominal widths and pressure levels as well as designing the pumps and control valves. We draw up the P&I diagram
and make detailed equipment and signal lists as an option. Of course, the project is fully documented to ensure thattechnology and processes can be quickly traced even after years of use.

High-quality components
An exact knowledge of the characteristic properties of our nozzles is key here. For only a complete system that iscoordinated to how the nozzles function and operate will ensure smooth and economical operation of the gas coolingsystem. The service life of the products used is key to a plant’s profitability. Unexpected failures can quickly lead toplant stoppages and costly production outages. Which is why we fit our valve skid units with high-quality components
from well-known manufacturers as standard and the most important functional components are even realized in redundant design.
The components are interconnected with pipes and mounted on a stable base frame with eyelets for crane transportation,at the same time ensuring that all components for operation and maintenance are arranged in an easily accessible manner.

Tested quality
The design (e.g. dimensioning of nominal widths) and production are in line with the latest state of the art and comply withall relevant standards. They are equally subject to the Lechler quality management system certified to DIN EN ISO 9001,
as is the final acceptance. Before delivery, the valve skid unit undergoes a pressure and tightness test and is checked byour experienced engineers. This will avoid any problems during commissioning.

Control concept from the nozzle specialist
Numerous installations of VarioCool® systems, years of commissioning experience, plus expertise in nozzle technology
all contribute to the constant improvement and optimization of Lechler control systems. By installing a control solution
from Lechler you will benefit considerably from this wealth of experience. The flexible and fully automatic concept canbe perfectly adapted to your process. You will have start-up and shut-down scenarios and dynamic process conditions
under perfect control with our solution.

Option packages for our VarioCool® valve skid units
Electrical wiring of the components:

Control cabinet with complete PLC
All components including the pumps are wired toa control cabinet. The control cabinet is integrated
into the base frame of the valve skid unit.

Junction box
All components except the pump
motors are wired to a junction box
within the valve skid unit.
This assures that the customer has acentral connection point for all
electrical components and measuring
devices for further processing in thehigher-level control.

The complete injection control is tested in accordancewith valid electrical standards and regulations andallows all relevant process parameters to be visualized
over a control panel on the control cabinet.
Specific configuration and extensive testing makecommissioning much faster. Communication andthe exchange of signals (setpoint, plant status, error
messages) with the customer’s logic system iscarried out via PROFIBUS or PROFINET.
The control has several modes of operation suchas automatic mode and manual mode for tests during
plant downtimes. In the event of faults, our engineers
can quickly perform a remote diagnosis via theinstalled modem without the need for an on-site visit.

13

VarioCool ® gas cooling system
For a perfectly tailored solution

Extended scope of delivery

14

Ring mains

Purge air connection

Ring mains are usually used to supply thelances. Lechler supplies ring mains andheaders together with the corresponding
brackets for welding onto the flue gas
duct. Accessories such as pressuretransmitters and manometers plus theappropriate connections for the lancesand supply lines are also included in thescope of delivery.

In order to increase the injection
turn-down ratio, individual lances orlance groups can be connected or
disconnected. If the disconnectedlances are in the flue gas duct, therest of the fluid should be purged.
Vaporization and deposits in the lancecan be prevented in this way.

Water tankA water tank made of steel or plastic
serves as a reservoir for the valve skid
unit and guarantees injection operation
for a certain period of time in the eventof the water supply failing. Its size isadapted to the injection quantity. The
components for tank filling and levelmonitoring are included in the scope ofdelivery.

Temperature measurement

Barrier air fan

For a constantly regulated outlet
temperature, it is very important for the
response characteristics of the temperature sensors to be adapted to theambient conditions. Lechler provides
the appropriate thermometers andassists you in defining the installation
position.

In order to protect the nozzles andlances from dust deposits and/or hightemperatures, barrier air is frequently
applied to them.
For this purpose, Lechler supplies fansgeared to the specific application withvarious optional attachments such as athrottle valve, suction filter and silencer.

... !
Talk to us
Do you require an option that is not listed? Or are you
having planning issues? No problem. Tell us what yourrequirements are. We will find the appropriate solution
and ensure a seamless integration.

15

ENGINEERING AND SERVICE

Our experience for your success

From digital to realWith our experienced engineering team, you havea competent contact for your project at all times –from technical design and detail engineering tocommissioning and the replacement of spare andwearing parts. You will benefit from direct contact
and fewer communication channels to enable smoothcompletion of your project.

Each individual design of gas cooling and conditioning
systems is based on innovative software. CFD calculations are used for flow optimization. Using a 3D tool,
we identify the optimum liquid distribution in the duct
together with the necessary lance arrangement.
Our drawings are created using state-of-the-art design
engineering software.

Exclusive solutions

Extensive documentation

Lechler offers a system solution tailored to yourapplication and plant-specific conditions. We use only
high-quality components from renowned manufacturers
for our valve skid units. If you choose a system witha control, you will get a complete solution for your gas
cooling and conditioning requirement from a single
source.

Our nozzle lances and systems are designed andmanufactured in line with the current standards andregulations. New plants are always delivered withproject-related documentation containing all relevant
information for commissioning, operation and maintenance. Lechler will also provide a verbal descriptionof the function and control concept where desired.

Reliable service is part of ouragreement

Future-proof

Lechler is Europe's No. 1 nozzle manufacturer. A key
factor for this success is our service. For even after yoursystem has been delivered, you are in good hands with
Lechler. We offer a worldwide commissioning service
provided by employees with many years of experience.
A signal and performance test ensures optimal system
operation taking all operating and safety aspects into
consideration. An important point of commissioning is
also the detailed briefing of operating and maintenancepersonnel in the operation and maintenance of the plant.
We are your competent partner who will provide you withassistance to solve your problems. Our on-site service
for preventive maintenance ensures continuous operation.
We will be more than happy to draw up a maintenancecontract tailored to your needs.

16

Lechler systems are built to withstand harsh conditions
and enable reliable and long-term operation. But we
too have to lend to the extreme process conditions.
Which is why it is all the more important to us to have aguaranteed long-term supply of spare parts for wearing
parts – worldwide. With our global network of representatives, we offer a worldwide platform for contact
and advice. You will find your competent contacts on
the Lechler website.

CFD ANALYSIS

Fluid Dynamics simulation as a process optimization tool
For us, perfection is not just a promise, but is based on calculation of computational Fluid Dynamics (CFD).
No matter what the spray application, the goal is always to achieve the maximum effect with the minimum possible use of material,
spray media and energy. It is therefore essential to have a detailed understanding of how spray mist is formed and propagated.
This is made possible by computer-aided simulation of the flow processes (CFD – Computational Fluid Dynamics) of one or more
substances in static or dynamic environments taking into account heat and mass transfer.
These simulations incorporate our many decades of know-how from the field of nozzle development. Initially, CFD was only aninternal tool which helped us to develop a desired nozzle more quickly and precisely. The completion of our high-performancecluster with a processing power of around 8,500 GFlops means that we can now offer our know-how as a service. We simulate
nozzle applications and processes individually for your environment and your requirements. So that your processes also run perfectly in real life.

Our services:Your advantages:


Calculation of the flow field includingpressure losses with one or more flowing
media in pipes and fittings
Maximum efficiency as regards:– the use of expensive consumable media– geometric dimensions of the overall sprayprocess


Spray propagation including heat andmass transfer with the surrounding gases
under practically all conceivable ambientconditions

Calculation of internal nozzle flows andprediction of the spray pattern, water distribution and spray characteristics down
to droplet sizes in the near-nozzle range

18


Through targeted optimization of:– nozzle selection– nozzle operating point (taking into accountyour pumps, compressors and blowers)– liquid distribution– droplet sizes– inflow and outflow of your process gases
in relation to the spray process(with the aim of achieving uniformity
and reducing pressure losses)

You can’t just guess at perfection,
it must be precisely calculated

Optimization of SNCR process –best possible selection and placement of nozzles

The flow behavior of gases is significantly determined by
the geometry of the environment. By applying computer
simulation using computational fluid dynamics (CFD),
our specialists can detect unequal gas distributions aswell as turbulence. Depending on the specific conditions,these issues can be resolved in different ways. Installing
baffles, perforated plates or even repositioning nozzles canbe simulated to achieve the desired flow chara­cteristics.
The result of optimized gas flow via CFD can significantly
reduce energy and/or material requirements.

Benefits:
Reactive ammonia vapor
is present where thegas containing nitrogen(NOx) flows


Avoidance of unnecessary NH3 slip, meaning
efficient use of theammonia solution
Best possible reduction
rates of nitrogen oxides

Optimization of the gas flow in thegas cooling tower
Benefits:
Wet ground avoided asEfficient cooler operation 
well as possible caking
thanks to lower atomizingon the inner wall of the
air consumption and/or
coolerlower connection pressu
Stable process in various
res at the nozzle lancesload cases
BeforeDesign and continuous optimizationof our products
Benefits:

Optimal atomization
effect
Efficient use of theconnected atomization
media


Reduction of therequired nozzle
connection pressures
Individual nozzle
development in the
shortest time

After

19

MEASURING TECHNOLOGYHOW OUR RESOURCES HELP US ACHIEVE PRECISION

What we are doing
before we do it
At Lechler, exact measurements have long been thebasis for clearly defined spraycharacteristics. The dataobtained in our laboratories
form the foundation for any
development and make iteasier for our customers tochoose nozzles for specificapplications. This saves time,
lowers costs and provides
planning security.

Advanced technology
We have further expanded
our research capacities by
opening our own Development and Technology Center.
A highlight here is a laserassisted phase doppler anemometer. As one of the mostmodern optical measuring
procedures, it measures thevelocity and the diameterof spherical droplets simultaneously and without contact.
Using the data obtained,
spectra can be reliably derived
for particle size distributionsand velo­cities.

Measurements range fromtiny water droplets in the
micro­meter region to verylarge droplets of around8 millimeters. These are performed with a high temporaland spatial resolution.
Individual positions in thespray can be automati­callyapproached and measured
with extremely high accuracy –in x, y and z directions.

International cooperation
We at Lechler value theimportance of international
cooperation. For this is often
what opens up new perspectives on a problem. In addition,
cooperation offers us thepossibility of testing nozzles invery special test environments
and of discovering new use
scenarios in this way.

Our unique selling point: Practice-based knowledge
Since it was founded, Lechler has stood out for its development of new technologies. In more than a century we have successfully filed a large number of patents. Starting with the “Centrifugal Sprayer” from 1893 and going up to state-of-the-art
technol­ogies of the 21st Century. We will continue this proud tradition into the future, and our new technical center will be
key to doing so. After seven years of construction, the Lechler Development and Technology Center was opened in thesummer of 2016. Since then it has offered everything nozzle developers dream of on a surface of over 600 m². In addition toextensive measuring facilities, state-of-the-art test benches with a wide range of pump performances are available to measureand investigate sprays, from microfine mist to fuller sprays with varying jetting characteristics.

21

MEASURING TECHNOLOGY
THE LECHLER DEVELOPMENT AND TECHNOLOGY CENTER

Our measurement range:

Measurement validation of our calculation models
taking the example of a gas cooling tower Precise and reproducible measurement of droplet
sizes and speeds in sprays
 Measurement of complete sprays or of local
positions in a spray Documentation of the spectra for particle size
distribution and velocities
 Determination of the Sauter mean diameter and ofmany other variables relevant for process engineering Measurement of very dense sprays using state-ofthe-art laser technology
 Measurement of tiniest droplets in the µm region
and measurement of very large drops of up to 8 mm
 Measurement of droplet velocities up to 200 m/s
 High temporal and spatial resolution
 Positions in the spray can be automaticallyapproached and measured with extremely highaccuracy – in a 3-dimensional space in x, y and z
directions
 Very large measuring range allows measurementof very wide particle spectra The size and velocity of each individual droplet isdetected Error-free results in accordance with ISO 9001
 Spray characteristics over area mapped in 3D
 Detection of positive and negative velocity
components

Key figures of our experimental cooler withindustry partners:
Approx. two megawattsof thermal performanceUse of single-fluid andtwin-fluid nozzles underthe most realistic conditions possibleFlexible variation of inlet
and outlet temperatures


Monitoring of droplet
sizes and numbers inseveral levels

Detection of the evaporation rates of injected
sprays
Use of more than 50
sensors of different
kinds for the precise
detection of all operating
parameters

QUALITY WITH A SYSTEM
Lechler products are used in a wide variety of sectors
and applications.
Which is why the products’ requirements are often very specific to certain applications. We define the term “quality” as theextent to which our products fulfill our customers’ individual
requirements.
We are certified according to internationallyrecognized standards. Conscientious working
and constant quality controls have always
been carried out at Lechler, from materials
receiving, development and production rightthrough to shipping. So that our products
keep what we promise in their daily use.

22

... !
Talk to us
Your requirements are the first step towards a solution.
We are more than happy to help you solve your individualtasks. Tell us your objectives and we will take care of
the solution. If the solution is not yet available, we will
tailor-make one for you. That is our promise.

FOR YOUR QUESTIONS

Data collection sheet
for calculatinga gas cooling system

QUESTIONNAIRE

Dear customer,
to comment on your gas conditioning problem, we would require all data known to you and indispensable for computing.

Company:

Date:

Address:

Contact person:
Phone/Fax:
E-Mail:Nobody knows yourprocess and requirements
better than you. Yourknowledge is critical to us
in order to find the optimal
nozzle for your application.

Simply send us the completed questionnaire orenter your information
online.

1. Gas dataClinker production (in case of cement plant)t/dGas flowt inlet [°C]

max.:

min.:

nominal:

min.:

min.:

min.:

max.:

standard:

max.:

max.:

H2 O

Gas composition [Vol. %]t outlet [°C]

max.:

CO2

O2

N2


Other components of gas (HCI, HF, CaCl2 etc.)[mg/Nm3*, humid]Dust content in gas
System pressure (in the reaction area)
Altitude of the plant

meters above sea level

2. Conditions on SiteAre gas cooling tower dimensions fixed?
(Please attach Sketch/drawing of GCT or Duct!)

 Yes
 No

Ø
Favorite -Ø[mm] dimensions[mm] dimensions

Available reaction distancem Reaction distance to be determined
Direction of gas

 ⇓

 ⇑


Nozzle type: Single fluidComplete evaporation required?

 Twinfluid[mm x mm]
[mm x mm] ⇒
 Both types possible

 Yes  No
Is water injection system always in operation?  Yes  No

In case the operation is interrupted, running time%

* T0 = 273 K (0°C), P0 = 1 bar

Lechler GmbH · Precision Nozzles · Droplet Separators
P. O. Box 1323 · 72544 Metzingen, Germany · Phone +49 7123 962-0 · Fax +49 7123 962-405 · info@lechler.de · www.lechler.com

Data collection sheet for design of a gas cooling systemwww.lechler.de/environmental/questionnaire_gascooling

Data collection sheet for design of a DeNOx systemwww.lechler.de/environmental/questionnaire_denox

FULL INFORMATION IS JUST A CLICK AWAY:
THE LECHLER WEBSITE

Our website contains
further information on our
products as well as useful
resources.

www.lechler.com

23

World Headquarters
Lechler Companies
Sales Offices

Lechler GmbH · Precision Nozzles · Nozzle Systems
P.O. Box 13 23 · 72544 Metzingen, Germany · Phone: +49 7123 962-0 · Fax: +49 7123 962-301 · info@lechler.de · www.lechler.com
ASEAN: Lechler Spray Technology Sdn. Bhd. · No. 23, Jalan Teknologi 3/3A · Taman Sains Selangor 1 · Kota Damansara, PJU 5 · 47810 Petaling Jaya · Malaysia · info@lechler.com.my
Belgium: Lechler S.A./N.V. · Avenue Mercator 6 · 1300 Wavre · Phone: +32 10 225022 · Fax: +32 10 243901 · info@lechler.be
China: Lechler Intl. Trad. Co. Ltd. · Beijing · Rm. 418 Landmark Tower · No. 8 Dong San Huan Bei Lu · Phone: +86 10 84537968, Fax: +86 10 84537458 · info@lechler.com.cn
Finland: Lechler Oy · Jäspilänkatu 18 · 04250 Kerava · Phone: +358 207 856880 · Fax: +358 207 856881 · info@lechler.fi
France: Lechler France, SAS · Bât. CAP2 · 66-72, Rue Marceau · 93558 Montreuil · Phone: +33 1 49882600 · Fax: +33 1 49882609 · info@lechler.fr
Great Britain: Lechler Ltd. · 1 Fell Street, Newhall · Sheffield, S9 2TP · Phone: +44 114 2492020 · Fax: +44 114 2493600 · info@lechler.com
India: Lechler (India) Pvt. Ltd. · Plot B-2 · Main Road · Wagle Industrial Estate · Thane (W) - 400604 · Phone: +91 22 40634444 · Fax: +91 22 40634498 · lechler@lechlerindia.com
Italy: Lechler Spray Technology S.r.l. · Via Don Dossetti 2 · 20080 Carpiano (Mi) · Phone: +39 02 98859027 · Fax: +39 02 9815647 · info@lechleritalia.com
Spain: Lechler S.A. · Avda. Pirineos 7 · Oficina B7, Edificio Inbisa I · 28700 San Sebastián de los Reyes, Madrid · Phone: +34 91 6586346 · Fax: +34 91 6586347 · info@lechler.es
Sweden: Lechler AB · Kungsängsvägen 31 B · 753 23 Uppsala · Phone: +46 18 167030 · Fax: +46 18 167031 · info@lechler.se
USA: Lechler Inc. · 445 Kautz Road · St. Charles, IL. 60174 · Phone: +1 630 3776611 · Fax: +1 630 3776657 · info@lechlerUSA.com

Edition 09/18 · EN · PDF · S-2018-8400-110 · www.dgm-kommunikation.de · S · Subject to technical modification.

LECHLER WORLDWIDE